Home / 85,000.12-127,504.34-32,399.80

Finding the Fourth Proportional to 85,000.12, 127,504.34 and 32,399.80

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Solution

The fourth proportional to 85,000.12, 127,504.34 and 32,399.80 is: 48,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,000.12 : 127,504.34 = 32,399.80 : x
  2. Step 2: Convert to fraction form
    85,000.12/127,504.34 = 32,399.80/x
  3. Step 3: Cross multiply
    85,000.12x = 127,504.34 × 32,399.80
  4. Step 4: Simplify right side
    85,000.12x = 4,131,115,115.13
  5. Step 5: Solve for x
    x = 4,131,115,115.13/85,000.12
  6. Step 6: Final answer
    x = 48,601.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.